What are the cheapest airlines flying from Knoxville to Duluth round-trip?

United Airlines, at $238, was found to be the cheapest airline from Knoxville to Duluth. An alternate airline flying to your destination would be Delta.

What is the cheapest month to book a flight from Knoxville to Duluth?

Currently, January is the cheapest month in which you can book a flight from Knoxville to Duluth (average of $337). Flying from Knoxville to Duluth in June is currently the most expensive (average of $476). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest day to fly from Knoxville to Duluth?

Travelers seeking maximum savings on their Knoxville to Duluth flight should consider departing on Wednesday mornings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Duluth ranges from 0.6 - 3.6 inches per month. August is typically the wettest month, when rainfall can reach 3.6 in. February is typically the driest time to visit Duluth when rainfall is around 0.6 in.

If weather is an important factor for your trip to Duluth, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 12.2 F).

What is the cheapest day to fly round-trip from Knoxville to Duluth?

Departing on a Tuesday is a good option for securing a great price. You can expect to save up to 51% when planning your travel around this day of the week.

What is the cheapest time of day to fly from TYS to DLH?

Unlike at noon, when flights are generally more expensive, you can save up to 47% on flights from Knoxville to Duluth by exploring options for tickets in the morning.

Can I find deals for flights from Knoxville to Duluth that include hotel bookings?

Yes. In addition to deals on Knoxville to Duluth flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Knoxville to Duluth?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Duluth.

Can I find deals for business class flights from Knoxville to Duluth?

Yes. Cheapflights offers flight deals from Knoxville to Duluth by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Best time to book a flight from Knoxville to Duluth

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Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Duluth

Get a feel of what it's like to fly with Delta and United Airlines from Knoxville to Duluth by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,965 reviews

Reviews

1 / 20

8.0

Excellent

Marie Antonette,Sep 2023

CDG - MSP

The actual flight out of MSP was great. However, it was delayed by an hour and we didn’t have anyone at our gate to provide any information until boarding.

Delta

8.0

Very good

7,965 reviews

Delta

8.0

Very good

7,965 reviews

Reviews

1 / 20

8.0

Excellent

Marie Antonette,Sep 2023

CDG - MSP

The actual flight out of MSP was great. However, it was delayed by an hour and we didn’t have anyone at our gate to provide any information until boarding.

United Airlines

7.4

Good

8,943 reviews

Delta

8.0

Very good

7,965 reviews

Reviews

1 / 20

8.0

Excellent

Marie Antonette,Sep 2023

CDG - MSP

The actual flight out of MSP was great. However, it was delayed by an hour and we didn’t have anyone at our gate to provide any information until boarding.

Related info for your journey

What are the cheapest airlines flying from Knoxville to Duluth round-trip?
United Airlines, at $238, was found to be the cheapest airline from Knoxville to Duluth. An alternate airline flying to your destination would be Delta.
Can I find deals for flights from Knoxville to Duluth that include hotel bookings?
Yes. In addition to deals on Knoxville to Duluth flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Knoxville to Duluth?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Duluth.
Can I find deals for business class flights from Knoxville to Duluth?
Yes. Cheapflights offers flight deals from Knoxville to Duluth by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Knoxville to Duluth?
Currently, January is the cheapest month in which you can book a flight from Knoxville to Duluth (average of $337). Flying from Knoxville to Duluth in June is currently the most expensive (average of $476). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 2 airlines flying from Knoxville to Duluth

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$238	Average$399	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$238	Average$458	FlexibilityNo cancel fee	On-timeN/A

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Find cheap flights from Knoxville to Duluth with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Best time to book a flight from Knoxville to Duluth

Have a flexible travel schedule? Discover the best time to fly to Duluth from Knoxville with our price prediction graph.

Reviews of airlines servicing Duluth

Get a feel of what it's like to fly with Delta and United Airlines from Knoxville to Duluth by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Knoxville to Duluth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from Knoxville to Duluth round-trip?

Can I find deals for flights from Knoxville to Duluth that include hotel bookings?

How can I find direct flights from Knoxville to Duluth?

Can I find deals for business class flights from Knoxville to Duluth?

What is the cheapest month to book a flight from Knoxville to Duluth?

Traveling to a place near Duluth?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Knoxville to Duluth

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Duluth by adding a car rental and/or hotel reservation to your travel itinerary.

Other flights to Duluth

Explore flights to Duluth departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 9, 2025.

Search flights from Knoxville to Duluth by cabin class

Find flights from Knoxville to Duluth, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Knoxville and Duluth flights

Browse other Knoxville and Duluth flight options. Last updated on September 9, 2025.

Other flights from Knoxville

Browse through other flights departing from Knoxville. Flights are based on user searches made on Cheapflights and were last updated on September 9, 2025.

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Top 2 airlines flying from Knoxville to Duluth

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Cheap flights from Knoxville to Duluth (TYS - DLH)

Find cheap flights from Knoxville to Duluth with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Best time to book a flight from Knoxville to Duluth

Have a flexible travel schedule? Discover the best time to fly to Duluth from Knoxville with our price prediction graph.

Reviews of airlines servicing Duluth

Get a feel of what it's like to fly with Delta and United Airlines from Knoxville to Duluth by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Knoxville to Duluth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from Knoxville to Duluth round-trip?

Can I find deals for flights from Knoxville to Duluth that include hotel bookings?

How can I find direct flights from Knoxville to Duluth?

Can I find deals for business class flights from Knoxville to Duluth?

What is the cheapest month to book a flight from Knoxville to Duluth?

Traveling to a place near Duluth?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Knoxville to Duluth

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Knoxville to Duluth

100% Free

Book with Flexibility

Travel Smart